Joule Thief

[electricme]

@Mk1,
You poor old thing, sorry to hear you are crook.
Its bad chucking up for 5 days.                         

@all

Sorry , i got really sick , i have been vomiting for the last 5 days now, i am trying to keep up , got i problem with my doctor not wanting to help me get back on my feet (i needed a saline solution for support and got denied by a bitch that get a dr pay check , stupidity comes it all size and sexe ) ,i have a hard time passing water , man is this world going to.



Its not fun being crook.
Get some chicken broth into you, my mum used to give us kids that stuff, yum, and it fixed the tummy up too.
Sneek a tot of rum, or brandy or in it, (hide it, don't tell anyone) lol.


Hurry up and get better Mark.


jim

[electricme]

@Jadaro2600
If you want to give the JT grunt, this is one way to do it without the 1.5v AA

Is it just me or is this circuit a little cross?  Doesn't this waste energy to a larger degree - it's got a path straight through, so to speak.

No, this one dosent wast energy,
If you look at the Battery, it is up to 24v DC. If you presented that voltage to the base of the transister, it would go pooof and let the smoke out lol
The 2 resisters allow a "portional" amount of voltage to the transisters base, BUT, the "full" 24v would bee seen at the top of the coil. When it is operating, there would be a tiny fluxuration seen at the junction between the two resisters, Very cleavor circuit this one.

It could easily have been done by placing just 1 resistor on the +.

BTW, how did I get my above post message inserted inside with MK1's post?
Now I'm confused.

The Mouse war, Casualtys mice =11 in 2 days
Thanks Jeanna for those tips.

jim

[ScienceMan]

Hi All

Found this interesting invention by Ann Ainslie using Back EMF that appears to be similar to the JT. You might have seen it before but I think it's worth checking out.

http://www.wipo.int/pctdb/en/wo.jsp?wo=1999038247

ScienceMan

[resonanceman]

Hi All

Found this interesting invention by Ann Ainslie using Back EMF that appears to be similar to the JT. You might have seen it before but I think it's worth checking out.

http://www.wipo.int/pctdb/en/wo.jsp?wo=1999038247

ScienceMan

Good find  Scienceman

I  didn't  read the whole thing
From  the schematic  it  could  be a  JT ......it doesn't  show if the  starts for the  coil  are hooked up  start to end or start to start .
How they  are tapping power might  be worth  studying

This  could  also  be a way to add grunt to a small JT


gary

[electricme]

@Scienceman,
Good find that circuit, I can see we will be placing diodes all over the JT now just to see what we can see will happen with it.
So much new stuff turning up don't know where to begin.

PS, don't forget your school studies, they are important for you, but we need you here also he he




@all, mouse trap went off again, make  Dtoll = 14 now, just for 2 days work.

Saw amother mouse, he ran over the top of the deddem still stuck in the trap before I could get to it, so at least another one to be got.
Traps need to be tuned, just like the Joule Thief.

@Bill
This thread is just awsome, I really cannot thank you enough for starting it.
Is all OK? I havent see you posting much.

what a weekend it has been so far.


jim